On Mon, 6 Apr 2015 22:14:56 -0700 "Jonathan Harker (Jesusaurus)"
[off-list ref] wrote:

On Mon, Apr 6, 2015 at 6:50 PM, NeilBrown [off-list ref] wrote:

quoted

On Tue, 7 Apr 2015 09:46:08 +1000 NeilBrown [off-list ref] wrote:

quoted

On Fri, 3 Apr 2015 19:22:15 -0700 "Jonathan Harker (Jesusaurus)"
[off-list ref] wrote:

quoted

Third, is it possible to resume the reshape? If not, can it be reverted?

I'll have to get back to you on that.  Hopefully you can be patient a little
longer.

NeilBrown

Thanks for taking the time to look into this. I've managed to be
patient with the problem for about a week now (I was cautiously poking
and prodding the array for a few days before reaching out to this
list) so I think I can manage a little more patience.

quoted

quoted

Hi again Jonathan,
 please report what version of mdadm and of Linux that you are running.

My mdadm version is "mdadm - v3.3.1 - 5th June 2014" and my linux
version (according to `uname -r`) is 3.16.2-3.

quoted

Also is there any chance that you tried
   mdadm --assemble .... --update=revert-reshape
??
And if you did, why didn't you say so :-)

During those first couple days I tried a couple assemble and
incremental commands to try to get the reshape to restart, though I
don't remember exactly what they were. It's possible I tried something
as scary and irreversible as --update=revert-reshape in some desperate
haze, so let's assume I did, but I was trying hard to avoid any advice
that included --force in the command.

Try:
  mdadm -S /dev/md124
  mdadm -A /dev/md124 --update=revert-reshape /dev/md/alpha /dev/md/beta
  mdadm -S /dev/md124
  mdadm -A /dev/md124 -vvv /dev/md/alpha /dev/md/beta /dev/md/gamma

What does that report?

NeilBrown